BD Diesel FUEL RAIL PLUG (1050071) for 2004.5-2010 Duramax 6.6L LBY / LBZ / LMM & 2007.5-2018 Cummins 6.7L

The BD Diesel Fuel Rail Plug (1050071) is a high-performance upgrade designed for 2004.5-2010 GM Duramax 6.6L engines, including the LLY, LBZ, and LMM models, as well as 2007.5-2018 Dodge Ram trucks equipped with the 6.7L Cummins engine. This fuel rail plug replaces the factory pressure relief valve (PRV) to eliminate potential fuel pressure drops caused by the stock PRV opening under high-demand conditions. By maintaining consistent fuel rail pressure, the BD Diesel plug helps improve throttle response, boost performance, and support higher horsepower applications. It’s a popular and cost-effective modification for diesel enthusiasts looking to enhance reliability and performance in their Duramax or Cummins-powered trucks.